6-N-pivaloyl-3',5'-O-(tetraisopropyldisiloxane-1,3-diyl)adenosine | 142741-95-5

• 分子结构分类: 有机化合物 - 核苷、核苷酸和类似物 - 嘌呤核苷
• 英文名称: 6-N-pivaloyl-3',5'-O-(tetraisopropyldisiloxane-1,3-diyl)adenosine
• 英文别名: 3',5'-O-(1,1,3,3-Tetraisopropyldisiloxane-1,3-diyl)-6-N-pivaloyladenosine；N-[9-[(6aR,8R,9R,9aS)-9-hydroxy-2,2,4,4-tetra(propan-2-yl)-6a,8,9,9a-tetrahydro-6H-furo[3,2-f][1,3,5,2,4]trioxadisilocin-8-yl]purin-6-yl]-2,2-dimethylpropanamide
• CAS: 142741-95-5
• 化学式: C₂₇H₄₇N₅O₆Si₂
• 分子量: 593.871
• InChiKey: KWWXJCLILCZEFO-PTGPVQHPSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.03
• 重原子数：
  40
• 可旋转键数：
  7
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.78
• 拓扑面积：
  130
• 氢给体数：
  2
• 氢受体数：
  9

反应信息

• 作为反应物：
  描述：

  6-N-pivaloyl-3',5'-O-(tetraisopropyldisiloxane-1,3-diyl)adenosine 在 吡啶 、 咪唑 、 均三甲苯磺酸 、 四丁基氟化铵 作用下， 以 四氢呋喃 、 N,N-二甲基甲酰胺 、 乙腈 为溶剂， 反应 0.13h， 生成 5'-O-(tert-butyldiphenylsilyl)-2'-O-<1-(2-fluorophenyl)-4-methoxypiperidin-4-yl>-3'-O-(9-phenylxanthen-9-yl)-6-N-pivaloyladenosine
  参考文献：
  名称：

  Sproat, Brian S.; Beijer, Barbro; Groetli, Morten, Journal of the Chemical Society. Perkin transactions I, 1994, # 4, p. 419 - 432

  摘要：

  DOI：
• 作为产物：
  描述：

  3,5-O-(1,1,3,3-四异丙基-1,3-二硅氧烷)腺苷 在 吡啶 、 对甲苯磺酸 作用下， 以 1,4-二氧六环 、 二氯甲烷 为溶剂， 反应 2.03h， 生成 6-N-pivaloyl-3',5'-O-(tetraisopropyldisiloxane-1,3-diyl)adenosine
  参考文献：
  名称：

  Sproat, Brian S.; Beijer, Barbro; Groetli, Morten, Journal of the Chemical Society. Perkin transactions I, 1994, # 4, p. 419 - 432

  摘要：

  DOI：

文献信息

• Some observations relating to the use of 1-aryl-4-alkoxypiperidin-4-yl groups for the protection of the 2′-hydroxy functions in the chemical synthesis of oligoribonucleotides
  作者：Wayne Lloyd、Colin B. Reese、Quanlai Song、Anthony M. Vandersteen、Cristina Visintin、Pei-Zhou Zhang

  DOI：10.1039/a908149f

  日期：——

  The comparative rates of acid-catalysed removal of ten 1-aryl-4-methoxypiperidin-4-yl 8 (R = Me) [including the previously reported Ctmp 5 and Fpmp 6] protecting groups for the 2′-hydroxy functions in oligoribonucleotide synthesis are discussed. These studies have led to the development of the 1-(4-chlorophenyl)-4-ethoxypiperidin-4-yl (Cpep) protecting group 8 (R = Et, R1 = R2 = H, R3 = Cl) which is both more stable than the Ctmp and Fpmp groups at pH 0.5 and more labile at pH 3.75. The influence of the ribonucleoside aglycone on the stability of the 2′-O-Fpmp and 2′-O-Ctmp protecting groups both at low and high pH is examined.

  讨论了在寡核苷酸合成中，十个1-芳基-4-甲氧基哌啶-4-基（R = Me，包括先前报道的Ctmp 5和Fpmp 6）保护基对2'-羟基功能的酸催化去除的相对速率。这些研究导致开发了1-(4-氯苯基)-4-乙氧基哌啶-4-基（Cpep）保护基8（R = Et，R1 = R2 = H，R3 = Cl），其在pH 0.5下比Ctmp和Fpmp群更加稳定，而在pH 3.75下更加不稳定。研究了核苷酸基在低pH和高pH下对2'-O-Fpmp和2'-O-Ctmp保护基稳定性的影响。
• Use of the 1-(2-fluorophenyl)-4-methoxypiperidin-4-yl (Fpmp) protecting group in the solid-phase synthesis of oligo- and poly-ribonucleotides
  作者：M. Vaman Rao、Colin B. Reese、Volker Schehimann、Pak Sang Yu

  DOI：10.1039/p19930000043

  日期：——

  the use of building blocks in which two acid-labile groups, 1-(2-fluorophenyl)-4-methoxypiperidin-4-yl (Fpmp) and 9-phenylxanthen-9-yl (Px), respectively, are used to protect the 2′- and 5′-hydroxy functions of ribonucleoside building blocks. The adenine, cytosine and guanine base residues are protected with pivaloyl, benzoyl and phenylacetyl groups, respectively. 2-Cyanoethyl N,N-diisopropylphosphoramidites

  描述了一种寡核苷酸和多核糖核苷酸的固相合成方法。合成策略涉及使用结构单元，其中两个酸不稳定基团分别为1-（2-氟苯基）-4-甲氧基哌啶-4-基（Fpmp）和9-苯基黄嘌呤-9-基（Px）用于保护核糖核苷结构单元的2'-和5'-羟基功能。腺嘌呤，胞嘧啶和鸟嘌呤碱基残基分别被新戊酰基，苯甲酰基和苯乙酰基保护。在耦合步骤中使用了2-氰乙基N，N-二异丙基亚磷酰胺和5-（3-硝基苯基）-1 H-四唑用作活化剂。在链组装过程之后，从功能化的受控孔玻璃固相支持物中释放了2'-保护的寡核苷酸和多核糖核苷酸；它们是通过用0.01摩尔DM完全畅通之前后者稳定核糖核酸（RNA）序列纯化-3在室温下盐酸（pH值为2）20小时。酵母丙氨酸tRNA（3-mer，r [GGAGAGGUGUCCCCGGUUCGAUUCCGGACUCGUCCACCA]）序列的3'端十聚体（r [UCGUCCACCA]），九糖（r [AU
• LARGE-SCALE SYNTHESIS OF “Cpep” RNA MONOMERS AND THEIR APPLICATION IN AUTOMATED RNA SYNTHESIS
  作者：R. T. Pon、S. Yu、T. Prabhavalkar、T. Mishra、B. Kulkarni、Y. S. Sanghvi

  DOI：10.1081/ncn-200060150

  日期：2005.4.1

  Small interfering RNAs (siRNA) are the latest candidates for oligonucleotide-based therapeutics. Should siRNA be successful in clinical trials, a huge demand for synthetic RNA is anticipated. We believe that 1-(4-chlorophenyl)-4-ethoxypiperidin-4-yl(Cpep) is an ideal 2'-protecting group for large-scale syntheses. Unlike 2'-silyl groups, mild acid hydrolysis instead of fluoride ion is used for the 2'-deprotection. The syntheses of 2'-Cpep protected nucleosides (A, Q G, and U) has been accomplished on a 0.5 Kg scale. The 2'-Cpep monomers were transformed into 3'-O-phosphoramidites for conventional automated solid-phase synthesis. Cost-effective processes for large-scale synthesis of Cpep monomers and initial automated solid-phase synthesis are demonstrated.
• Solid-phase synthesis of branched RNA and branched DNA/RNA chimeras
  作者：Morten Grøtli、Ramon Eritja、Brian Sproat

  DOI：10.1016/s0040-4020(97)00731-x

  日期：1997.8

  An effective method for synthesising branched oligonucleotides on solid phase in the 5' to 3' direction has been developed. Special branch-point monomers enable the synthesis of branched oligonucleotides which can have sequences of different length and base composition attached to the 2'-and 3'-hydroxyl groups of the branch point ribonucleoside. The branched oligonucleotides are assembled on commercial DNA synthesisers, the crude products are readily purified by reversed phase HPLC and the fully deprotected products are conveniently analysed by mass spectrometry. (C) 1997 Elsevier Science Ltd.
• Groetli, Morten; Sproat, Brian S., Journal of the Chemical Society. Chemical communications, 1995, # 4, p. 495 - 498
  作者：Groetli, Morten、Sproat, Brian S.

  DOI：——

  日期：——